Year	including construction (constant 2010 US$)
1991	32390.4401287742
1992	31922.4555700103
1993	32609.5865828017
1994	30594.6480098952
1995	30077.0691555948
1996	30477.9389698221
1997	28872.754361288
1998	28418.2159710536
1999	27133.734977583
2000	28437.7309348808
2001	26571.6772136099
2002	27433.3508624923
2003	28748.1883390776
2004	27857.5029053943
2005	28211.6245362447
2006	27750.6475145779
2007	28664.4287759145
2008	30145.6467777881
2009	29980.7452322704
2010	31976.0354250259
2011	31499.3016620367
2012	25422.9619064827
2013	23383.5032498134
2014	24336.1119903256
2015	24074.2230598637
2016	29689.3899824443
2017	30056.7557198241